package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.mail.EmailException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @BelongsProject: reggie_take_out
 * @BelongsPackage: com.itheima.reggie.controller
 * @Author: 许子康
 * @CreateTime: 2023-02-06  10:26
 * @Description: TODO
 * @Version: 1.0
 */
@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 移动端用户发送验证码v1.0
     *
     * @param user
     * @param session
     * @return
     */
    /*
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)) {
            //生成随机4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}", code);

            //调用阿里云提供的短信服务API完成短信发送
            //SMSUtils.sendMessage("学习瑞吉外卖","SMS_269255393",phone,code);//根据真实手机号收到验证码

            //需要将生成的验证码保存到Session
            //session.setAttribute(phone, code);

            //将生成的验证码缓存到Redis中,并设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码发送成功");
        }

        return R.error("短信发送失败");
    }
*/


    /**
     * 移动端用户发送验证码v1.1
     *
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) throws EmailException {
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)) {
            String code = SMSUtils.myEmail();
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return R.error("短信发送成功");
        }
        return R.error("短信发送失败");
    }


    /**
     * 移动端用户登录
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从Session中获取保存的密码
        //Object codeInSession = session.getAttribute(phone);

        //从Redis中获取缓存验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //进行验证码的比对(页面提交的验证码和Session中保存到验证码比对)
        if (codeInSession != null && codeInSession.equals(code)) {
            //如果能够比对成功说明登陆成功
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone, phone);

            User user = userService.getOne(queryWrapper);
            if (user == null) {
                //判断当前手机号是否为新用户,如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user", user.getId());

            //如果用户登陆成功,则删除缓存中的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }

        return R.error("登陆失败");
    }

}
